The company's results, published Thursday, showed its sales reached $24.8 billion in the first quarter. The company also revealed that it had succeed in developing some new sources of revenue.

Amazon(AMZN) was also up premarket on a strong earnings report. The stock is now approaching the $1,000 price mark.

Western Digital(WDC) surged in extended trading after topping analysts expectations in its earnings report Thursday.

Starbucks(SBUX) was down premarket after reporting weak sales growth in the U.S. Intel(INTC) was also heading for a lower open after the company missed sales forecasts.

Shares in Barclays(BCS), one of Britain's biggest banks, plummeted nearly 5% on Friday after reporting its results. Bank CEO Jes Staley is in hot water after admitting that he tried to unmask a whistleblower.

5. Earnings and economics:Exxon Mobil(XOM) and Chevron(CVX) are reporting results before the bell. Both are expected to show strong profits, benefiting from their cost cutting programs.

Colgate-Palmolive(CL), General Motors(GM), Honda(HMC) and Spirit Airlines(SAVE) are also set to release earnings before the open Friday.